Correction,1/6/14, 10:30 a.m. EST: The original version of this story incorrectly characterized Covington & Burling’s work on behalf of NYSE Euronext in connection with an SEC investigation. The fifth paragrah below has been revised to incorporate the correct information. We regret the error.

In the six years since Covington & Burling last appeared as a finalist in this contest, its litigation group has grown a whopping 40 percent. Covington quadrupled its intellectual property team, beefed up white-collar, product liability and antitrust, and dived into arbitration. Most importantly, it shed its image as a cerebral firm that won’t climb into the trenches, thanks partly to the 2009 hiring of Robert “Mike” Brock, who was a star offensive lineman for Bear Bryant’s Alabama Crimson Tide.